4x4x3 – Kraft Mailer Box
- Die cut from single wall 200 GSM 45BF Imported kraft top liner
- E Flute Corrugated Cardboard 2.1 mm wall thickness & 25 ECT construction
- Great for shipping, as subscription boxes, gift boxes, and e-commerce packaging
- Sustainably sourced & environmentally responsible
- Custom printed mailers: Print both outside & inside
Payment. Payment upon receipt of goods, Payment by card in the department, Google Pay, Online card, -5% discount in case of payment
Warranty. The Consumer Protection Act does not provide for the return of this product of proper quality.
Description
4x4x3 Kraft Mailer Box (Deep Cube Profile)
Stop forcing your dimensional or multi-item products into flat, restrictive envelopes that risk transit damage. Engineered with an extra inch of vertical clearance, our 4x4x3 Kraft mailer box provides a deeper, stable cube profile that accommodates taller or rounder small goods with ease. By switching to this proportional 3-inch deep footprint, e-commerce brands can completely eliminate wasteful bubble wrap and expensive void-fill while ensuring a pristine, professional unboxing experience.
Key Features & Business Benefits
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Deeper 3-Inch Cube Profile: These specialized deep small shipping boxes provide the crucial vertical clearance required to pack multi-item sets, thick rolled accessories, or single upright goods securely without bulging the exterior walls.
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Crush-Resistant Double-Walled Sides: Formed from ultra-resilient, sustainable corrugated cardboard, these 4x4x3 corrugated mailers shield fragile glass jars and heavy electronic components against severe corner impacts and side pressure during transit.
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Eco-Friendly Deep Packaging Wholesale: Manufactured entirely from natural brown Kraft paperboard, this 100% recyclable and biodegradable solution slashes fulfillment costs and aligns your retail operation with modern sustainable standards.
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Self-Locking Tuck-Front Design: The precision-cut front flaps snap tightly into place without requiring mandatory industrial adhesive or packaging tape, allowing your warehouse team to assemble, pack, and label parcels at peak efficiency.
Engineered for Taller, Deeper, or Multi-Item Freight
Standard flat shippers often fail when tasked with handling high-profile dimensional retail products. Our compact small brown cube boxes are explicitly optimized to secure and protect:
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Artisanal 2 oz to 4 oz Candle Jars: Perfect for hand-poured wax containers that need side clearance and top-to-bottom structural defense.
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Gourmet Food Glassware & Spices: Securely houses heavy, delicate glass spice jars, condiment bottles, and extract vials without shifting.
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Subscription Box Kits & Essential Oils: Seamlessly organizes stacked botanical collections, wellness samples, or delicate dropper bottles.
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Premium Tech Components & Heavy Hardware: Provides dense, multi-layered sidewall protection for circuit boards, solid-state drives, and mechanical parts.
Technical Specifications
| Attribute | Specification Details |
| Internal Dimensions | 4″ x 4″ x 3″ (Length x Width x Depth) |
| Material Type | High-strength structural corrugated cardboard |
| Profile / Flute Size | Premium rigid E-flute / B-flute blend |
| Color / Finish | Natural, unbleached matte Brown Kraft |
| Assembly Type | Toolless, self-locking tuck-front configuration |
| Eco-Status & Sustainability | 100% Recyclable, compostable, and biodegradable |
Frequently Asked Questions
Q: Does the extra 3-inch depth add to postal dimensional (DIM) weight costs?
A: No. Because our 4x4x3 mailer retains an incredibly compact overall footprint, it qualifies for standard low-weight postal rates with major carriers like USPS, FedEx, and UPS. In fact, utilizing these highly optimized sturdy gift mailing boxes prevents you from paying excessive DIM weight fees tied to oversized, half-empty cartons.
Q: Do these deep mailers require packing tape for reliable security?
A: Our engineered tuck-front configuration features interlocking side tabs that lock firmly into the base, making packing tape completely optional for structural integrity. However, for high-value fulfillment or to provide tamper-evident proof to your customers, applying a custom branded paper sticker or a single strip of packing tape across the front seam is recommended.
Q: Can these small cube boxes safely support heavy, fragile glass items?
A: Absolutely. The distinct double-walled side architecture of these small brown cube boxes delivers superior compression resistance compared to basic single-wall shippers. When carrying fragile items like glass candle jars or gourmet spice sets, the rigid corners effectively absorb external shock, keeping your heavy or breakable contents perfectly anchored and unbroken during bumpy transit routes.
| Attribute | Specification Details |
| Internal Dimensions | 4" x 4" x 3" (Length x Width x Depth) |
| Material Type | High-strength structural corrugated cardboard |
| Profile / Flute Size | Premium rigid E-flute / B-flute blend |
| Color / Finish | Natural, unbleached matte Brown Kraft |
| Assembly Type | Toolless, self-locking tuck-front configuration |
| Eco-Status & Sustainability | 100% Recyclable, compostable, and biodegradable |
Additional information
| Quantity | Pack of 100 Pc, Pack of 500 Pc, Pack of 1000 Pc |
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